Here is a look at the teams that helped and hurt themselves significantly this weekend.
Missouri -- The big win over Kansas will be a big help in the battle to be a No. 1 seed. Of course, those two will play again. Maybe twice more.
Ohio State and Indiana -- Both teams picked up their first significant road wins of the season. The Buckeyes won at Wisconsin and IU beat Purdue at Mackey.
Notre Dame -- The Irish continued their resurgance with a 76-59 pounding of Marquette, which had won seven straight. Notre Dame's winning streak is up to four, and all four are quality wins.
Memphis -- After struggling against better non-conference foes, the Tigers picked up a big comeback win over Xavier. That is arguably their best non-conference win. However, the Tigers also won at Miami, a win that looks a lot better today...
Miami -- The Hurricanes won at Duke for their fourth straight win, and easily their best of the season. It puts Miami squarely in the tournament chase.
Northwestern -- Just when you thought they were dead after losing at home to Purdue last weekend, they went to Champaign and beat Illinois yesterday.
Seton Hall -- The freefall continues. A 23-point loss at Connecticut is the Pirates sixth straight defeat.
Dayton -- Speaking of freefalling, it's an annual ritual for the Flyers. Their loss to Saint Louis over the weekend was their fourth in a row.
Purdue -- Losing at home to Indiana is never good for the Boilers, but their inabilitly to defend the home floor against tournament quality opposition may send them to the NIT.
Arkansas -- Lost at LSU and still looking for its first win outside Fayetteville.
Xavier -- The Muskies lost an opportunity at Memphis and have now lost three of five with a difficult stretch of the schedule coming up soon.
Oklahoma -- The Sooners have been on thin ice at best, but a home loss to Iowa State means the climb back to tournament contention may be too big a task.
Nevada -- The Wolf Pack still leads the WAC, but a home loss to Idaho may mean they have to beat Iona in the bracket buster to resuscitate any at-large chances they may have had.